Method of operating a water treatment plant with immersed membranes
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United States of America Patent
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Feb 14, 2012
Grant Date -
Nov 30, 2006
app pub date -
Apr 27, 2006
filing date -
Oct 29, 2003
priority date (Note) -
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Abstract
A liquid treatment plant has sets of membrane trains and processing trains with flow between them through channels. Steps of withdrawing permeate and sludge from the trains are described. Cyclic aeration is provided to the membrane trains. Methods of foam control, backwashing and chemical cleaning are described. Single membrane trains or process trains may be isolated for various functions. An isolated membrane train may be used to thicken sludge.
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